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83117671 = 7213130483
BaseRepresentation
bin1001111010001…
…00011001100111
312210101211000021
410331010121213
5132234231141
612125300011
72026326400
oct475043147
9183354007
1083117671
1142a1059a
1223a04607
13142b2470
14b0789a7
15746c6d1
hex4f44667

83117671 has 12 divisors (see below), whose sum is σ = 104126232. Its totient is φ = 65762928.

The previous prime is 83117669. The next prime is 83117687. The reversal of 83117671 is 17671138.

It is not a de Polignac number, because 83117671 - 21 = 83117669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83117071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64605 + ... + 65878.

It is an arithmetic number, because the mean of its divisors is an integer number (8677186).

Almost surely, 283117671 is an apocalyptic number.

83117671 is a deficient number, since it is larger than the sum of its proper divisors (21008561).

83117671 is a wasteful number, since it uses less digits than its factorization.

83117671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130510 (or 130503 counting only the distinct ones).

The product of its digits is 7056, while the sum is 34.

The square root of 83117671 is about 9116.8893269580. The cubic root of 83117671 is about 436.4131100537.

The spelling of 83117671 in words is "eighty-three million, one hundred seventeen thousand, six hundred seventy-one".

Divisors: 1 7 13 49 91 637 130483 913381 1696279 6393667 11873953 83117671